{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42567",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-09T18:09:08.059769Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-09T18:09:26.356Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "svelte",
          "vendor": "sveltejs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 5.51.5, \u003c 5.55.7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Svelte is a performance oriented web framework. From version 5.51.5 to before version 5.55.7, an internal regex in the Svelte runtime can take exponential time to test in \u003csvelte:element this={tag}\u003e\u003c/svelte:element\u003e. This issue has been patched in version 5.55.7."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "HIGH",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-09T16:22:22.703Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/sveltejs/svelte/security/advisories/GHSA-9rmh-mm8f-r9h6",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/sveltejs/svelte/security/advisories/GHSA-9rmh-mm8f-r9h6"
        },
        {
          "name": "https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7"
        }
      ],
      "source": {
        "advisory": "GHSA-9rmh-mm8f-r9h6",
        "discovery": "UNKNOWN"
      },
      "title": "Svelte: ReDoS in `\u003csvelte:element\u003e` Tag Validation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-42567",
    "datePublished": "2026-06-09T16:22:22.703Z",
    "dateReserved": "2026-04-28T17:26:12.084Z",
    "dateUpdated": "2026-06-09T18:09:26.356Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"Svelte: ReDoS in `\u003csvelte:element\u003e` Tag Validation\", \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-1333\", \"lang\": \"en\", \"description\": \"CWE-1333: Inefficient Regular Expression Complexity\", \"type\": \"CWE\"}]}], \"metrics\": [{\"cvssV4_0\": {\"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"baseScore\": 5.9, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N\", \"version\": \"4.0\"}}], \"references\": [{\"name\": \"https://github.com/sveltejs/svelte/security/advisories/GHSA-9rmh-mm8f-r9h6\", \"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://github.com/sveltejs/svelte/security/advisories/GHSA-9rmh-mm8f-r9h6\"}, {\"name\": \"https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7\"}], \"affected\": [{\"vendor\": \"sveltejs\", \"product\": \"svelte\", \"versions\": [{\"version\": \"\u003e= 5.51.5, \u003c 5.55.7\", \"status\": \"affected\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-06-09T16:22:22.703Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Svelte is a performance oriented web framework. From version 5.51.5 to before version 5.55.7, an internal regex in the Svelte runtime can take exponential time to test in \u003csvelte:element this={tag}\u003e\u003c/svelte:element\u003e. This issue has been patched in version 5.55.7.\"}], \"source\": {\"advisory\": \"GHSA-9rmh-mm8f-r9h6\", \"discovery\": \"UNKNOWN\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-42567\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-09T18:09:08.059769Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-09T18:09:12.952Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-42567\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"GitHub_M\", \"dateReserved\": \"2026-04-28T17:26:12.084Z\", \"datePublished\": \"2026-06-09T16:22:22.703Z\", \"dateUpdated\": \"2026-06-09T18:09:26.356Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}